Fold #9: where the holes fall — the solution

The four Fold rounds from October 1, 2026, worked through: each sheet unfolded one fold at a time until the holes show, and the backward round folded up until the punches do.

The puzzle

An 8×8 sheet is folded two or three times and punched; the player marks where the holes fall when it opens out. The last round runs backward: the open sheet and its holes are given, and the player punches the folded stack. Rows and columns below are counted from the top left of the open sheet; the dashed square is its outline.

The walkthrough

Round 1: 2 folds, 1 punch

The folds, in order:

1. the right 2 columns over to the left.
2. the bottom 4 rows up.

Then a punch at row 2, column 3 (through 2 layers). Undoing the folds last to first, every hole on a layer that was turned over gets a twin mirrored across that crease:

2 holes: row 2 — column 3; row 7 — column 3.

Round 2: 3 folds, 1 punch

The folds, in order:

1. the right 2 columns over to the left.
2. the top 2 rows down.
3. along the diagonal from top right to bottom left, the top-left half down onto the bottom-right.

Then a punch at row 5, column 5 (through 4 layers). Undoing the folds last to first, every hole on a layer that was turned over gets a twin mirrored across that crease:

4 holes: row 1 — column 4; row 4 — column 4; row 5 — columns 5 and 8.

Round 3: 3 folds, 2 punches

The folds, in order:

1. the top 2 rows down.
2. the left 2 columns over to the right.
3. along the diagonal from top right to bottom left, the bottom-right half up onto the top-left.

Then a punch at row 3, column 3 (through 5 layers) and row 3, column 5 (through 3 layers). Undoing the folds last to first, every hole on a layer that was turned over gets a twin mirrored across that crease:

8 holes: row 2 — columns 2, 3 and 5; row 3 — columns 2, 3 and 5; row 6 — column 8; row 8 — column 8.

Round 4 — backward: 3 folds, 2 punches

The open sheet is given with 6 holes in it — row 2 — columns 2 and 7; row 5 — columns 2 and 7; row 7 — columns 2 and 7 — and the player punches the folded stack to make them. The folds, in order:

1. the left 4 columns over to the right.
2. the top 3 rows down.
3. the left 1 column over to the right.

Folding the sheet up stage by stage, the holes stack onto each other until they sit in 2 places:

Punch at row 5, column 7 (through 4 layers) and row 7, column 7 (through 2 layers).

Previous: Fold #8 (Wed, Sep 30) · Next: Fold #10 (Fri, Oct 2)

About Fold

Fold is Noggin’s paper-folding puzzle, on the second shelf: four rounds a day of folds and punches, outside the daily line-up. How to play Fold, or play today’s.